This method will return free-busy information for each attendee. If the free-busy information can't be retrieve
(for example, users on an foreign server), check the isSuccess method to see if free-busy lookup was successful.

Use this method to search for resources (individual, group, resource, room).
For example, if you want to find all rooms that begins
with "Room" in their email or email address, call this method with:
getUserTypes(CuType.ROOM, "Room");
If nameToSearch is null, it will find all resources for the desired type.